11 Aug
2013
11 Aug
'13
8:42 a.m.
On Sun, Aug 11, 2013 at 2:41 PM, Tony Prisk linux@prisktech.co.nz wrote:
I am working on the HDMI driver for the i.MX6 as part of the larger DRM driver written by Sascha Hauer and need a little advice. I seem to be missing one important part of the subsystem that I haven't been able to resolve.
fbcon is limited by boot sizes as at least with dynamic memory management and how fbdev works resizing the allocation is nearly impossible to do race free, since fbdev will hand out mmaps to userspace and that stops you from ever moving anything once the device is open.
But this is only for the fbdev emulation, a real kms application should be able to use a larger size no problems.
Dave.